CN202747409U

CN202747409U - Oven core of biomass oven

Info

Publication number: CN202747409U
Application number: CN 201220403252
Authority: CN
Inventors: 陈水生
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-15
Filing date: 2012-08-15
Publication date: 2013-02-20
Anticipated expiration: 2022-08-15

Abstract

The utility model discloses an oven core of a biomass oven, relating to the technical field of manufacture of cooking appliances of the biomass oven. The oven core comprises an oven hearth and an oven sleeve sheathed outside the oven hearth; a gas supplying chamber is arranged between the oven hearth and the oven sleeve; the pipe wall of the oven hearth is provided with a feeding port which penetrates through the oven sleeve and extends obliquely and outwards; and a plurality of air supplying holes communicated with the gas supplying chamber are uniformly distributed on a bottom plate and the pipe wall of the oven hearth. Compared with the prior art, the oven core disclosed by the utility model has the advantages that the characteristics of the biomass burning are combined, and calculation and multi-time contrast experiment are carried out on the size and the height of the oven hearth and the distribution position and the quantity rate of the air supplying holes; the average fire intensity of the oven core of the biomass oven is large, the combustion is full, the slagging phenomenon is avoided, and the remaining grey-white ash amount after combustion is very less; and by detection, the heat efficiency of the moving type biomass oven is 45% which is higher than the standard of the heat efficiency of a cooking oven, which is more than or equal to 35%.

Description

Living beings kitchen range kitchen range core

Technical field

The utility model relates to living beings kitchen range kitchen range manufacturing technology field, and especially a kind of is the kitchen range core of the kitchen range of fuel with living beings.

Background technology

Biomass fuel is to be processed to form patch fuel with agriculture and forestry organic waste material, and the biomass fuel volatile matter content is high, accounts for 70%, and coke is about 30%; Its combustion process mainly is divided into two stages of burning, after-flame of the separating out of volatile matter, burning and residual coke.The kind of living beings kitchen range is a lot of on the market at present, there is a kind of technical scheme of living beings kitchen range kitchen range core roughly to be: to include a straight-cylindrical chamber of a kitchen range and be sleeved on the outer cooking stove cover of this chamber of a kitchen range, be air supply chamber between the described chamber of a kitchen range and the described cooking stove cover, the top of described chamber of a kitchen range tube wall is provided with the wind pushing hole that is communicated with described air supply chamber, is provided with appendix in described kitchen range cover bottom.In use there is following deficiency in this living beings kitchen range kitchen range core: 1, the living beings volatile matter is separated out in a large number under 250～350 ℃ of temperature and is begun violent burning, need enough air that volatile matter is fully burnt this moment, also will have enough air to make the residual carbon behind the burning volatile matter can completing combustion.And the charging aperture of this kitchen range core is located at the kitchen range mouth, and the biomass fuel that adds for the continuation of keeping fuel combustion is relatively many; The top-down combustion system of biomass fuel in the chamber of a kitchen range causes the bottom air capacity undersupply of the chamber of a kitchen range; Therefore, in the volatile matter afterburnt of the biomass fuel bottom the kitchen range core, be subject to the more difficult after-flame of coke that ashes wrap up, at the residual more remaining carbon in chamber of a kitchen range bottom.2, the flame on chamber of a kitchen range top wafts on undue, does not have the coke of after-flame easily along with air-flow enters flue, and not only contaminated air also increases the incomplete combustion loss of fuel.

The utility model content

Technical problem to be solved in the utility model provides a kind of living beings kitchen range kitchen range core that biomass fuel is fully burned.

The technical scheme that the utility model technical solution problem adopts is: this living beings kitchen range kitchen range core includes the chamber of a kitchen range and is sleeved on the outer cooking stove cover of the described chamber of a kitchen range, be air supply chamber between the described chamber of a kitchen range and the described cooking stove cover, described chamber of a kitchen range tube wall is provided with and passes described cooking stove cover and tiltedly stretch to outer charging aperture, and its base plate of the described chamber of a kitchen range and its tube wall are distributed with the wind pushing hole that a plurality of and described air supply chamber is communicated with; The described wind pushing hole at the nearly upper end position of the tube wall of described chamber of a kitchen range place and nearly lower end position place is circle distribution, this two place is described wind pushing hole between the described wind pushing hole of circle distribution and is helix and distributes, the helixangleβ of described helix is arctg3 π d/H, H is the height of the described chamber of a kitchen range, and d is the diameter of the described chamber of a kitchen range; The quantity of the described wind pushing hole that the quantity of the described wind pushing hole that the described chamber of a kitchen range distributes in the tube wall of described charging aperture one side and the tube wall of described chamber of a kitchen range opposite side distribute is than being 8:5; The described wind pushing hole of the tube wall of the described chamber of a kitchen range and backplane is taper hole, and the small bore end of described taper hole is positioned at described chamber of a kitchen range inwall; Nearly chamber of a kitchen range lower end position place is the described taper hole of circle distribution and the small bore end of the described taper hole that is the helix distribution is tilted to, and the small bore end that nearly chamber of a kitchen range upper end position place is the described taper hole of circle distribution is tilted to down.

In the above-mentioned living beings kitchen range combustion chamber technical scheme, technical scheme can also be more specifically: the base plate of the described chamber of a kitchen range is provided with ash discharging hole, and the ash discharge bolt is housed on described ash discharging hole; The contiguous kitchen range mouth of described cooking stove cover place is provided with smoke exhaust pipe.

Owing to having adopted technique scheme, the utility model compared with prior art, the beneficial effect that has is: 1, charging aperture is located at by the chamber of a kitchen range and tiltedly stretches on another outer root pipe, can add at any time fuel to keep the continuation of fuel combustion.2, this living beings kitchen range kitchen range core is the burning feature design according to biomass fuel, the wind pushing hole of bottom and the nearly lower end of tube wall then is the air increase flow velocity that enters the chamber of a kitchen range in order to allow at the bottom of taper wind pushing hole and the thorax, and guarantees that biomass fuel can obtain enough air supplies when chamber of a kitchen range internal combustion; The outlet side of the nearly lower end wind pushing hole of tube wall is tilted to, the outlet side of tube wall stage casing wind pushing hole is tilted to and is helix and distributes, to allow air stream on screw of formation under the actuating of the air that the air that chamber of a kitchen range base plate enters is entering from tube wall, make the biomass fuel of chamber of a kitchen range internal combustion obtain sufficient disturbance and burning and after-flame, do not have remaining carbon residual in the ashes; The density that charging aperture one side wind pushing hole distributes is higher than opposite side, helps to allow the side roll burning behind the backward chamber of a kitchen range of scattering of the biomass fuel combustion that enters from charging aperture.The outlet side of tube wall upper end wind pushing hole is tilted to down and is circle distribution, is that the flame on chamber of a kitchen range top is pushed down on the one hand, avoids flame to waft on too; On the other hand, increase the time of staying of fuel in stove, strengthen the disturbance of biomass fuel is made the coke after-flame.Just because of kitchen range core design combines the characteristics of biomass combustion, the size of the chamber of a kitchen range, height and wind pushing hole distributing position and quantity are than all pass through calculating and contrast experiment repeatedly; The average intensity of fire of this living beings kitchen range kitchen range core is large, and sufficient combustion does not have the slagging scorification phenomenon, and the rear last canescence ashes amount of burning seldom; The thermal efficiency of mobile biomass kitchen range is 45% to be higher than the cooking-type stove more than or equal to 35% standard after testing.3, in the bottom of the chamber of a kitchen range ash discharge bolt is housed, in case be mingled with the impurity such as sand in the biomass fuel, when needing, the ash discharge bolt is taken out from the chamber of a kitchen range, water is gone out impurity through appendix.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

Fig. 2 is the schematic diagram that the utility model embodiment chamber of a kitchen range tube wall wind pushing hole helix distributes.

Fig. 3 is the partial enlarged drawing at the I place among Fig. 1.

Fig. 4 is the partial enlarged drawing at the II place among Fig. 1.

Fig. 5 is the partial enlarged drawing at the III place among Fig. 1.

Fig. 6 is the expanded view of the lead of helix h that distributes of the wind pushing hole of the chamber of a kitchen range tube wall of the utility model embodiment.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

Living beings kitchen range kitchen range core as shown in Figure 1 includes the chamber of a kitchen range 3 and is sleeved on the chamber of a kitchen range 3 outer cooking stoves and overlaps 2, be air supply chamber between the chamber of a kitchen range 3 and the cooking stove cover 2, the chamber of a kitchen range 3 tube walls are provided with and pass cooking stove cover 2 and tiltedly stretch to outer charging aperture 4, and the chamber of a kitchen range 3 its base plates 5 and tube wall are distributed with a plurality of wind pushing holes that are communicated with air supply chamber; The base plate 5 of the chamber of a kitchen range 3 is provided with ash discharging hole, and ash discharge bolt 6 is housed on ash discharging hole, in case be mingled with the impurity such as sand in the biomass fuel, when needing, ash discharge bolt 6 is taken out from the chamber of a kitchen range 3, and water is gone out impurity through appendix 7; Cooking stove cover 2 contiguous kitchen range mouth places are provided with smoke exhaust pipe 1.

The described wind pushing hole at the nearly upper end position of the tube wall place of the chamber of a kitchen range 3 as shown in Figure 2 and nearly lower end position place is circle distribution, this two place is wind pushing hole between the wind pushing hole of circle distribution and is helix and distributes, the helixangleβ of helix is arctg3 π d/H, and H is the height of the chamber of a kitchen range, and d is the diameter of the chamber of a kitchen range; The quantity of the wind pushing hole that the quantity of the wind pushing hole that the chamber of a kitchen range 3 distributes in the tube wall of charging aperture 4 one sides and the tube wall of the chamber of a kitchen range 3 opposite sides distribute is than being 8:5; The wind pushing hole that the tube wall of the chamber of a kitchen range 3 and base plate 5 distribute is taper hole, and the small bore end of taper hole is positioned at the described chamber of a kitchen range 3 inwalls; The wind pushing hole of the base plate 5 of the chamber of a kitchen range 3, as shown in Figure 3; The nearly chamber of a kitchen range 3 lower end position places are the taper hole of circle distribution and the small bore end of the taper hole that is the helix distribution is tilted to, and are shown in Figure 4; The small bore end that the nearly chamber of a kitchen range 3 upper end position places are the taper hole of circle distribution is tilted to down, as shown in Figure 5; Fig. 6 is the expansion schematic diagram of the lead of helix h that distributes of the chamber of a kitchen range 3 tube wall wind pushing holes, calculates the helical pitch of helix and draws expanded view according to the size of the chamber of a kitchen range 3, press figure and can hole in the tube wall line of the chamber of a kitchen range 3.

When using the kitchen range core, biomass fuel is dropped into and lights from charging aperture 4, at this moment, biomass fuel is in the chamber of a kitchen range 3 internal combustion, sufficient air capacity supply is arranged at the chamber of a kitchen range 3 bottoms, allow air stream on screw of formation under the actuating of the air that the air that the chamber of a kitchen range 3 base plates enter is entering from tube wall, make the biomass fuel of the chamber of a kitchen range 3 internal combustion obtain sufficient disturbance and burning and after-flame, do not have remaining carbon residual in the ashes; The density that charging aperture 4 one side wind pushing holes distribute is higher than opposite side, helps to allow the side roll burning behind the backward chamber of a kitchen range of scattering of the biomass fuel combustion that enters from charging aperture 4.The outlet side of tube wall upper end wind pushing hole is tilted to down and is circle distribution, is that the flame on chamber of a kitchen range top is pushed down on the one hand, avoids flame to waft on too; On the other hand, increase the time of staying of fuel in stove, strengthen the disturbance of biomass fuel is made the coke after-flame.The average intensity of fire of this living beings kitchen range kitchen range core is large, and sufficient combustion does not have the slagging scorification phenomenon, and the rear last canescence ashes amount of burning seldom; The thermal efficiency of mobile biomass kitchen range is 45% to be higher than the cooking-type stove more than or equal to 35% standard after testing.

Claims

1. living beings kitchen range kitchen range core, include the chamber of a kitchen range (3) and be sleeved on the outer cooking stove cover (2) of the described chamber of a kitchen range (3), be air supply chamber between the described chamber of a kitchen range (3) and the described cooking stove cover (2), it is characterized in that: the described chamber of a kitchen range (3) tube wall is provided with and passes described cooking stove cover (2) and tiltedly stretch to outer charging aperture (4), and its base plate of the described chamber of a kitchen range (3) (5) and its tube wall are distributed with the wind pushing hole that a plurality of and described air supply chamber is communicated with;

The described wind pushing hole at the nearly upper end position of the tube wall place of the described chamber of a kitchen range (3) and nearly lower end position place is circle distribution, this two place is described wind pushing hole between the described wind pushing hole of circle distribution and is helix and distributes, the helixangleβ of described helix is arctg3 π d/H, H is the height of the described chamber of a kitchen range, and d is the diameter of the described chamber of a kitchen range; The quantity of the described wind pushing hole that the quantity of the described wind pushing hole that the described chamber of a kitchen range (3) distributes in the tube wall of described charging aperture (4) one sides and the tube wall of the described chamber of a kitchen range (3) opposite side distribute is than being 8:5;

The described wind pushing hole that the tube wall of the described chamber of a kitchen range (3) and base plate (5) distribute is taper hole, and the small bore end of described taper hole is positioned at the described chamber of a kitchen range (3) inwall; The nearly chamber of a kitchen range (3) lower end position place is the described taper hole of circle distribution and the small bore end of the described taper hole that is the helix distribution is tilted to, and the small bore end that the nearly chamber of a kitchen range (3) upper end position place is the described taper hole of circle distribution is tilted to down.

2. living beings kitchen range kitchen range core according to claim 1, it is characterized in that: the base plate (5) of the described chamber of a kitchen range (3) is provided with ash discharging hole, and ash discharge bolt (6) is housed on described ash discharging hole; The contiguous kitchen range mouth of described cooking stove cover (2) place is provided with smoke exhaust pipe (1).